# 1991 Stockholm Open – Singles

Defending champion Boris Becker defeated Stefan Edberg in a rematch of the previous year's final, 3–6, 6–4, 1–6, 6–2, 6–2 to win the singles tennis title at the 1991 Stockholm Open.

## Seeds

* Stefan Edberg (final)
* Boris Becker (champion)
* Jim Courier (semifinals)
* Michael Stich (second round)
* Ivan Lendl (third round)
* Guy Forget (third round)
* Pete Sampras (quarterfinals)
* Sergi Bruguera (second round)
* Karel Nováček (third round)
* David Wheaton (second round)
* Petr Korda (quarterfinals)
* Goran Ivanišević (quarterfinals, retired)
* Derrick Rostagno (third round)
* Jakob Hlasek (third round)
* Goran Prpić (third round)
* Brad Gilbert (third round)

## Draw
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final | Final | Final | |
| 1 | Stefan Edberg | 6 | 2 | 6 | | | | | | | | | | | | | |
| | Richey Reneberg | 3 | 6 | 3 | | | | | | | | | | | | | |
| | Richey Reneberg | 3 | 6 | 3 | 1 | Stefan Edberg | 6 | 6 | | | | | | | | | |
| | | | | | | Aaron Krickstein | 2 | 2 | | | | | | | | | |
| | Aaron Krickstein | 7$^{10}$ | 1 | | | Aaron Krickstein | 2 | 2 | | | | | | | | | |
| 12 | Goran Ivanišević | 6$^8$ | 0$^r$ | | | | | | | | | | | | | | |
| 12 | Goran Ivanišević | 6$^8$ | 0$^r$ | | | | | | | 1 | Stefan Edberg | 6 | 4 | 6 | 2 | 2 | |
| | | | | | | | | | | 2 | Boris Becker | 3 | 6 | 1 | 6 | 6 | |
| 11 | Petr Korda | 4 | 4 | | | | | | | | | | | | | 2 | Boris Becker | 3 | 6 | 1 | 6 | 6 |
| 3 | Jim Courier | 6 | 6 | | | | | | | | | | | | | | |
| 3 | Jim Courier | 6 | 6 | | 3 | Jim Courier | 7$^7$ | 3 | 4 | | | | | | | | |
| | | | | | 2 | Boris Becker | 6$^4$ | 6 | 6 | | | | | | | | |
| 7 | Pete Sampras | 5 | 5 | | 2 | Boris Becker | 6$^4$ | 6 | 6 | | | | | | | | |
| 2 | Boris Becker | 7 | 7 | | | | | | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 1 | S Edberg | 6 | 6 | | | | | | | | | | | |
| WC | P Lundgren | 6 | 6 | | WC | P Lundgren | 3 | 4 | | | | | | | | | | | |
| | M Koevermans | 3 | 2 | | | | | | | 1 | S Edberg | 6 | 6 | | | | | | |
| | P McEnroe | 6$^3$ | 6 | 6 | | | | | | 16 | B Gilbert | 2 | 3 | | | | | | |
| | H Skoff | 7$^7$ | 3 | 3 | | P McEnroe | 2 | 2 | | | | | | | | | | | |
| | | | | | 16 | B Gilbert | 6 | 6 | | | | | | | | | | | |
| | | | | | | | | | | | | | | | 1 | S Edberg | 6 | 2 | 6 |
| | | | | | | | | | | | | | | | | R Reneberg | 3 | 6 | 3 |
| | | | | | 9 | K Nováček | 6 | 6$^1$ | 6 | | | | | | | | | | |
| | W Masur | 6 | 6 | | | W Masur | 4 | 7$^7$ | 4 | | | | | | | | | | |
| WC | J Gunnarsson | 4 | 4 | | | | | | | 9 | K Nováček | 6 | 3 | 3 | | | | | |
| | A Volkov | 4 | 2 | | | | | | | | R Reneberg | 2 | 6 | 6 | | | | | |
| | R Reneberg | 6 | 6 | | | R Reneberg | 7$^7$ | 1 | 6 | | | | | | | | | | |
| | | | | | 8 | S Bruguera | 6$^4$ | 6 | 1 | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | M Stich | 7$^8$ | 6$^4$ | 0 | | | | | | | | | |
| Q | L Pimek | 2 | 6 | 6$^6$ | | A Krickstein | 6$^6$ | 7$^7$ | 6 | | | | | | | | | |
| | A Krickstein | 6 | 2 | 7$^8$ | | | | | | | A Krickstein | 6 | 3 | 6 | | | | |
| | T Champion | 5 | 3 | | | | | | | 14 | J Hlasek | 2 | 6 | 2 | | | | |
| | J Siemerink | 7 | 6 | | | J Siemerink | 6 | 6$^6$ | 6$^4$ | | | | | | | | | |
| | | | | | 14 | J Hlasek | 4 | 7$^8$ | 7$^7$ | | | | | | | | | |
| | | | | | | | | | | | | | | | | A Krickstein | 7$^{10}$ | 1 |
| | | | | | | | | | | | | | | | 12 | G Ivanišević | 6$^8$ | 0$^r$ |
| | | | | | 12 | G Ivanišević | 7 | 6$^4$ | 7 | | | | | | | | | |
| | M Larsson | 6 | 6 | | | M Larsson | 5 | 7$^7$ | 5 | | | | | | | | | |
| Q | R Bergh | 2 | 1 | | | | | | | 12 | G Ivanišević | 7$^{15}$ | 7$^7$ | | | | | |
| | R Agénor | 6 | 6 | | | | | | | 6 | G Forget | 6$^{13}$ | 6$^5$ | | | | | |
| | M Rosset | 4 | 3 | | | R Agénor | 3 | 2 | | | | | | | | | | |
| | | | | | 6 | G Forget | 6 | 6 | | | | | | | | | | |

#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 5 | I Lendl | 7 | 6 | | | | | | | | | | |
| WC | T Enqvist | 6$^5$ | 3 | | | T Woodbridge | 5 | 2 | | | | | | | | | | |
| | T Woodbridge | 7$^7$ | 6 | | | | | | | 5 | I Lendl | 7 | 1 | 4 | | | | |
| | A Cherkasov | 3 | 5 | | | | | | | 11 | P Korda | 5 | 6 | 6 | | | | |
| | C Bergström | 6 | 7 | | | C Bergström | 7$^7$ | 6$^5$ | 3 | | | | | | | | | |
| | | | | | 11 | P Korda | 6$^4$ | 7$^7$ | 6 | | | | | | | | | |
| | | | | | | | | | | | | | | | 11 | P Korda | 4 | 4 |
| | | | | | | | | | | | | | | | 3 | J Courier | 6 | 6 |
| | | | | | 13 | D Rostagno | 3 | | | | | | | | | | | |
| Q | H Holm | 3 | 6$^2$ | | | A Järryd | 0$^r$ | | | | | | | | | | | |
| | A Järryd | 6 | 7$^7$ | | | | | | | 13 | D Rostagno | 5 | 1 | | | | | |
| | C-U Steeb | 6$^3$ | 6 | 6 | | | | | | 3 | J Courier | 7 | 6 | | | | | |
| | A Mancini | 7$^7$ | 3 | 4 | | C-U Steeb | 4 | 4 | | | | | | | | | | |
| | | | | | 3 | J Courier | 6 | 6 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | P Sampras | 7$^9$ | 6$^7$ | 6 | | | | | | | | | |
| | J Svensson | 5 | 6 | 1 | Q | T Högstedt | 6$^7$ | 7$^9$ | 3 | | | | | | | | | |
| Q | T Högstedt | 7 | 4 | 6 | | | | | | 7 | P Sampras | 6$^1$ | 6 | 6 | | | | |
| Q | D Engel | 5 | 6 | 6 | | | | | | Q | D Engel | 7$^7$ | 2 | 4 | | | | |
| | N Kulti | 7 | 4 | 2 | Q | D Engel | 4 | 6 | 7$^7$ | | | | | | | | | |
| | | | | | 10 | D Wheaton | 6 | 4 | 6$^5$ | | | | | | | | | |
| | | | | | | | | | | | | | | | 7 | P Sampras | 5 | 5 |
| | | | | | | | | | | | | | | | 2 | B Becker | 7 | 7 |
| | | | | | 15 | G Prpić | 7$^8$ | 6$^5$ | 6 | | | | | | | | | |
| WC | J Connors | 6 | 7$^7$ | | WC | J Connors | 6$^6$ | 7$^7$ | 1 | | | | | | | | | |
| | M Jaite | 3 | 6$^5$ | | | | | | | 15 | G Prpić | 6$^3$ | 1 | | | | | |
| | O Camporese | 6 | 6 | | | | | | | 2 | B Becker | 7$^7$ | 6 | | | | | |
| Q | R Leach | 4 | 2 | | | O Camporese | 6 | 5 | 3 | | | | | | | | | |
| | | | | | 2 | B Becker | 4 | 7 | 6 | | | | | | | | | |